Hydrogen technology is the solution for intermediate storage of surplus energy from renewable solar power, to ensure stable delivery of electricity 24/7. Renewable hydrogen plants can also be installed fully or partly off grid.
Hydrogen has no “best before date” and when energy is needed hydrogen is piped to a fuel cell for creating electricity and heat. Water that was split for storing of hydrogen is restored at the same time as electricity is delivered by the fuel cell. In a way, this water has a negative footprint as it is cleaner than it entered the electrolyser.